Automatic fuel-regulator.



No. 867,042 PATENTED SEPT. 24, 1907, v L. HOLBBN.

AUTOMATIC PUBL TTGULTTTOR.V IAPPLIUA'IEIOI? FILED JAN. 22,1907'.

1N VENTOR .f

ATTORNEY regulating the amount of oil andsteam which LEVI HOLBEN,\OI;`SAN FRANCISCO, CALIFORNlA.

nuroirrn'rr'e FUEL-REGULATOR.

V -"Specification of Letters Patent.

Application led January Z2, 1907. Serial No. 353,442. l

Patented Sept. 24, 19117.

To all whom it may concer-n:

lBe it known that I, LEVI HOLBEEN, a citizen of the United States,residing at the city and county oi Sanv Francisco and State ofCalifornia, have invented new and useful Improvements in Automatic'Fue1-l`tegu laters, of which the i'ollowing is a specification.

My invention relates to an apparatus for automatically are supplied iorcombustion in furnaces.

It consists in the combination of parts and in details of'constructionwhich will be more fully explained by reference to the accompanyingdrawings, in which- Figure 1 is a side elevation showing my invention invposition. Fig. is an enlarged section of a portion of the apparatus.Fig. 3 Yis a' view transversely just below the cylinder. o

A is a bracket or support of any description which may be attachedto thefront of the boiler as at B, ory

upon any suitable or desired support in convenient proximity to the boiler or furnace Where the work is to be done. This bracket is hereshown contrived to support a cylinder 2,'in which a plunger'3 is fittedto reciprecate. This plunger is reduced as shown at 4, and continued inthe form of a stem 5, which stem is slidable through a screw-threadedsleeve 6, which serves as' a guide to maintain the movements of theplunger in a direct line. A,

7 is a disk or plate having a hole through it, said hole .beingdivergent at the upper side of the plate so as to t 3 0 against theconical portion 4 between the piston and stem. This disk has a slot orchan nel made transversely across its lower face, and adapted to receivea bar which fits in the slot 4as shown at 8. This bar extendshorizontally and has its end forked as shown at 9, and this fork fits,-and is slidable upon a rib or projection l() of the bracket A; thus thedisk 7 is prevented from turning. This disk has arms 1l and l1nprojecting from it at right angles from the line oi the arm 8, and thesearms carry portions oi the regulating mechanism to be hereafterdescribed.

The oflce oi the disk 7 and its interlocking bar 8 is to normally holdthe arms 1l and l1'l in their proper position and to allow them to b ereversed so as to project to the opposite side of thestem 5 whendesired.

12 is a disk against which the upper end of a spring 13 lits and isseated. The lower end oi this spring contacts with and is supported by adisk .or plate 14 which is carried upon the upper end of thescrew-threaded sleeve 6. This sleeve passes through the screw-threadedlower hubpr boss l5 of the bracket A, and by turning the screwthreadedportion the springf may be either compressed to increase its tension orrelaxed, and the tension reduced for a purpose to 'be hereafterdescribed.

To the ends oi the arms 11-l1,are connected the upper ends of links16--16; the lower ends of these links being made hollow andscrew-threaded to re i ceive a rod 17, the upper end oi which may have aare two othese rods 17--177 one connecting with each oi the arms 111-11,and the lower ends of these rods are connected with the crank or leverarms 18-18LL which serve to turn cocks l9-19a controlling a passagethrough each ei the pipes 20-20a. These pipes supply oil and steam to aburner 2l and the proportions of oil and steam thus supplied are regu-Alated by turning the rods 17 which, being right and left screw-threadedat opposite ends will, when turned in one direction, lengthen thedistance between the levers 11-11* and the levers 18e-18 and when turnedin the opposite direction will correspondingly shorten the distance, sothat the cocks will be opened more or less according to the adjustment,and the proper proportion of steam and oil can be delicately regulate Inorder to move theplunger 3 within the cylinder 2, and thus move the arms1111'L and connected parts, 1 haveshown a pipe 22 connected with theboiler so as to deliver steam into the upper part of the cylinder 2.If,. for example, it be desired to carry 150 lbs. pressure oi steam inthe boiler, the fire is so regulated that steam will be raised to suchpressure in the boiler, and the tension of the spring 13 reached, itwill prevent the piston or plunger from being forced down, and theadjustment of the rod 17 will so control the steam and oil cocks thatthe amount admitted will be suilicient to approximately maintain thispressure. If the pressure rises above the desired figure, the upwardpressure of the spring l13 will be overcome by the downward pressureupon the plunger 3, the spring 13 will be compressed and the armsll-l1fL caused te move downward with it, thus partially closing thecocks and reducing the fire so that the steam pressure will shortly bebrought to the normal. ll the pressure becomes reduced below the desiredfigure, the pressure of the spring 13 will overcome that of the plunger3, and the connected parts will be forced upwardly, thus opening thesteam and oilsupply cocks, and increasing the ire until the steampressure in the boiler has again reached the normal.

I have described vthis apparatus as being adapted to control a re inwhich oil and steam are intermingled; but it will be obvious that thesame device may be used to control an air supply under pressure in placeof or in conjunction with the steam pressure; and anyother equivalentmeans for promoting the ire under the boiler to make steam which can beused in turn. to regulate the supply.

One cock-controlling lever may have a litt-le more throw than the other,so that there will be a proper` tionate difference in the opening orclosing of the right and the lower end a left screw-thread. There l willbe so regulated that until this pressure has been steam and oil cocks,to maintain a certain desired proportion of these elements delivered tothe burner.l

Having thus described my invention what I claim and desire to secure byLetters Patent isplunger, u disk having a transverse slot into which oneofy said arme is fitted, said arm having n -guided `fork at theupperend, n spring, disks surroundingthe Astein below said arm and betweenwhich the spring is located so as to press upwardly and retain the armsnormally in their higher position, a screw thread cut upon the sleevepassing through a correspondingly threaded iixed nut whereby the lowerspring supporting disk will he moved to increase or diminish the tensionof the spring, means for admitting stenln from the boiler into the upperend of the cylinder, a structure with viilve controlled steam and oilpipes leading thereto, and means between `the spring and plungercontrolled arms whereby the valves are opened-or closed.

2. In an apparatus of the character described, a verti= cally disposedcylinder having a plunger movable therein and n guided stem, means forsupplying steam from the boiler to the upper end ot the cylinder todepress ilic plunger, an adjustable spring actingln opposition to theplunger, and means tor regulating its adjustment, u transversely Slotteddiskfagaihst which the spring nets in opposition to the plungerpressure, an'arm fitting the transverse slot having a guided fork nt theouter end, arms projecting from the disk, a burner, menns for supplyingiiuidsvunder pressureto said burner, controlling` cocks und connectionsbetween said cocks and the disk-carried arms, said arms being reversiblein the slotteddlsk to transfer the mechanism to one side orthe other ofthe cyl luder axis.

Invtestlmony whereof 'I have hereunto set my hand in presence of twosubscribing Witnesses.

LEVI HOLBEN.

Witnesses:

S. H. Nonnm, F. E. MAYNAim.

